CN107063661B - Adjustable nozzle scouring test device - Google Patents
Adjustable nozzle scouring test device Download PDFInfo
- Publication number
- CN107063661B CN107063661B CN201710203865.1A CN201710203865A CN107063661B CN 107063661 B CN107063661 B CN 107063661B CN 201710203865 A CN201710203865 A CN 201710203865A CN 107063661 B CN107063661 B CN 107063661B
- Authority
- CN
- China
- Prior art keywords
- nozzle
- tank body
- adjustable
- flange
- hose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention provides an adjustable nozzle scouring test device, which solves the problems that mud cakes are easy to form in the shield construction process and the stability and the safety of shield construction tunneling are influenced, and comprises a pressurizing tank body, a tank body and a plurality of adjustable nozzles, wherein the adjustable nozzles are fixed on the pressurizing tank body, a sight glass and a pressure sensor are arranged on the pressurizing tank body, and the positions of the sight glass and the pressure sensor correspond to the positions of the adjustable nozzles; the box body is connected with the adjustable spray head through a first hose, a variable frequency washing pump is arranged on the first hose, the lower part of the pressurizing tank body is connected with the box body through a second hose, and an outlet valve is arranged on the second hose; and a water sealing flushing mechanism is arranged on the variable frequency flushing pump. The invention can simulate the scouring test effect of the nozzle and the scouring system under different working conditions, solves the problem that mud cakes are easy to form in shield construction, reduces the construction risk and reduces the manufacturing and maintenance cost.
Description
Technical Field
The invention relates to the technical field of shield tunneling machine flushing devices, in particular to an adjustable nozzle flushing test device which is suitable for a flushing device required by slurry and soil pressure shields in tunneling.
Background
At present, the number of tunnel boring machines such as shield tunneling machines and TBMs is continuously increased, and along with the increasing of the diameter of the shield, the phenomenon of 'mud cake' in the construction process is also continuously increased, and huge economic loss is caused. Then, if the problem of mud cake formation is solved by effectively selecting the nozzles, the shield construction tunneling is more stable and safer, and application test simulation must be successfully obtained on a related test bed. The simulation is allowed to be applied to real equipment after the simulation is successful, and the transformation phenomenon in tunnel construction is avoided. Therefore, reducing the risk of equipment construction, reducing the manufacturing and maintenance costs, and the like, become important issues to be solved.
The design of the nozzle and the design of the scouring system are used as the key application of shield construction, and the reasonability and the reliability of the nozzle and the scouring system are extremely important. In order to reduce the construction risk, the working condition needs to be truly simulated through the test bed, so that the reliability of the nozzle and the scouring system is judged.
Disclosure of Invention
The invention provides an adjustable nozzle scouring test device which is simple in structure and has the characteristic of ultra-low clearance occupation, and aims to solve the technical problems that mud cakes are easy to form in the shield construction process, and the stability and safety of shield construction tunneling are affected.
In order to solve the technical problems, the technical scheme of the invention is as follows: an adjustable nozzle scouring test device comprises a pressurizing tank body, a tank body and a plurality of adjustable nozzles, wherein the adjustable nozzles are fixed on the pressurizing tank body; the box body is connected with the adjustable spray head through a first hose, a variable frequency washing pump is arranged on the first hose, the lower part of the pressurizing tank body is connected with the box body through a second hose, and an outlet valve is arranged on the second hose; and a water sealing flushing mechanism is arranged on the variable frequency flushing pump.
The hose of the water seal flushing mechanism is sequentially provided with a manual ball valve, a pressure switch, a flow regulating valve and a check valve, pressure gauges are arranged on two sides of the flow regulating valve, and the water seal flushing mechanism is connected with a variable-frequency flushing pump through the manual ball valve.
Two ends of the variable frequency flushing pump are connected with a first hose through flexible joints, and a pressure gauge, a manual ball valve and a flowmeter are sequentially arranged on the first hose between the variable frequency flushing pump and the adjustable spray head; and liquid level switches are arranged at the upper part and the lower part of the box body.
And a first nozzle interface, a second nozzle interface, a third nozzle interface and a sight glass are arranged on one side of the pressurizing tank body, the sight glass and a pressure sensor which correspond to the first nozzle interface, the second nozzle interface and the third nozzle interface are arranged on the other side of the pressurizing tank body, and the first nozzle interface, the second nozzle interface and the third nozzle interface are connected with the adjustable sprayer through third flanges.
The number of the first nozzle interfaces and the number of the second nozzle interfaces are 3, pressure sensors are fixed on the opposite sides of 2 first nozzle interfaces and 2 second nozzle interfaces, and sight glasses are arranged on the opposite sides of 1 first nozzle interface and 1 second nozzle interface; the number of the third nozzle ports is two, and a pressure sensor is fixed on the pressurizing tank body opposite to the third nozzle ports; the upper part of the pressurizing tank body is provided with a sight glass.
And a sealing strip is arranged between the pressure sensor and the pressurizing tank body, is an O-shaped sealing strip and is connected with the pressurizing tank body through a bolt.
The adjustable spray head comprises a spray nozzle, a piston rod, a first screw rod and a second screw rod, and the spray nozzle is fixedly connected with the piston rod through a second flange; the first screw rod is connected with the upper part of the third flange through a nut, and the second screw rod is fixed at the lower part of the third flange; and a fourth flange is fixed at the tail end of the piston rod and is connected with the first screw rod and the second screw rod through nuts.
The middle part of the second flange is provided with a first sealing gasket, and the periphery of the second flange fixedly connects the nozzle and the piston rod through a bolt, a nut and a gasket; the piston rod is connected with the first hose through a hose connecting flange, the hose connecting flange is connected with the first screw rod and the second screw rod through nuts, and a second sealing gasket is arranged between the hose connecting flange and the piston rod.
And a reciprocating seal is arranged between the piston rod and the third flange, a stop block is arranged at the rear end of the reciprocating seal, the upper part of the stop block is fixedly connected with the third flange, and an adjusting gasket is arranged between the upper part of the stop block and the third flange.
A cover body is arranged on one side of the pressurizing tank body and connected with the pressurizing tank body through a first flange; the lower part of the pressurizing tank body is fixed on a support frame, and the support frame is fixed on the base.
According to the invention, the adjustable spray head and the pressure sensor or the sight glass are respectively arranged on two opposite sides of the pressurizing tank body, so that the distance between the spray nozzle and the spray target can be adjusted, and the effect of the scouring test can be detected and observed in real time; the variable frequency washing pump can adjust the flow of the spray head, and the outlet valve at the outlet of the pressurizing tank body can adjust the pressure of the pressurizing tank body, so that the flushing test effect of the spray nozzle and the flushing system under different working conditions can be simulated; different nozzle interfaces are arranged on the pressurizing tank body, so that the pressurizing tank is suitable for testing nozzles of different sizes. The invention solves the problem of easy mud cake formation in shield construction, reduces construction risk and reduces manufacturing and maintenance cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic diagram of the construction of a pressurized can body of the present invention.
FIG. 3 is a schematic view of the connection between the adjustable nozzle and the pressure sensor of the present invention and the pressurized tank.
FIG. 4 is a schematic view of the connection structure of the adjustable nozzle and the sight glass of the present invention with the pressurized tank.
Fig. 5 is an enlarged view of a in fig. 3.
In the figure, 1 is a pressurized tank, 2 is an adjustable nozzle, 3 is a cover, 4 is a first flange, 5 is a liquid level switch, 6 is a base, 7 is a pressure gauge, 8 is a first nozzle port, 9 is a second nozzle port, 10 is a third nozzle port, 11 is a first hose, 12 is a second hose, 13 is a sight glass, 14 is a pressure sensor, 15 is a sealing strip, 16 is a nozzle, 17 is a second flange, 18 is a reciprocating seal, 19 is a first sealing gasket, 20 is a third flange, 21 is an adjusting gasket, 22 is a stopper, 23 is a piston rod, 24 is a first screw, 25 is a second screw, 26 is a fourth flange, 27 is a second sealing gasket, 29 is a hose connecting flange, 30 is a support frame, 31 is a flexible joint, 32 is a variable frequency washing pump, 33 is a manual ball valve, 34 is a flow meter, 35 is a check valve, 36 is a box, 37 is a pressure switch, 38 is a flow regulating valve, and 39 is an outlet valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 and 2, an adjustable nozzle flushing test device includes a pressurized tank 1, a tank 36, and a plurality of adjustable nozzles 2, where the adjustable nozzles 2 are fixed on the pressurized tank 1, and nozzles 16 are fixed on the adjustable nozzles 2, and the adjustable nozzles 2 can move relative to the pressurized tank 1 to adjust the extension lengths of the nozzles 16. By adjusting the distance of the nozzle 16 from the impact surface, the flushing effect can be tested at different target distances. The pressure tank body 1 is provided with the sight glass 13 and the pressure sensor 14, the sight glass 13 and the pressure sensor 14 are positioned corresponding to the adjustable spray head 2 and are respectively positioned at two sides of the pressure tank body 1, namely, the sight glass 13 and the pressure sensor 14 are arranged on an impact surface of a medium sprayed out of a nozzle 16 of the adjustable spray head 2, the sight glass 13 is convenient to observe the scouring effect of the nozzle 16 on the pressure tank body 1 at the front end of the sight glass, and the pressure sensor 14 can detect the scouring pressure of the nozzle 16 on the pressure tank body 1 at the front end of the sight glass in real time. The height from the sight glass 13 and the pressure sensor 14 to the ground is the same as the height from the adjustable spray head 2 to the ground, namely, the centers of the adjustable spray head 2, the sight glass 13 and the pressure sensor 14 are on the same horizontal line. The box body 36 is connected with the adjustable spray head 2 through the first hose 11, the variable frequency washing pump 32 is arranged on the first hose 11, the washing medium in the box body 36 is conveyed to the adjustable spray head 2 through the variable frequency washing pump 32, and meanwhile, the flow entering the adjustable spray head 2 can be changed. The lower part of the pressure tank 1 is connected with the tank 36 through the second hose 12, the second hose 12 is provided with an outlet valve 39, and the outlet valve 39 can convey the scouring medium in the pressure tank 1 to the tank 36, so that the scouring medium can be recycled. The outlet valve 39 can change the pressure of the pressurizing tank 1 to realize the adjustment of different pressures, so that the pressurizing tank 1 can simulate different pressure working conditions and change the stress state of the impact surface. And a water sealing flushing mechanism is arranged on the variable frequency flushing pump 32 and is used for performing water sealing on the variable frequency flushing pump 32.
The hose of the water sealing flushing mechanism is sequentially provided with a manual ball valve 33, a pressure switch 37, a flow regulating valve 38 and a check valve 35, two sides of the flow regulating valve 38 are provided with pressure gauges 7, and the water sealing flushing mechanism is connected with a variable-frequency flushing pump 32 through the manual ball valve 33. The check valve 35 prevents the media in the variable frequency flush pump 32 from flowing backwards, affecting the water sealing performance. The pressure gauge 7 is used for detecting the pressure on the water seal flushing mechanism and then regulating the pressure of a hose of the water seal flushing mechanism through a pressure switch 37, and a flow regulating valve 38 is used for regulating the flow of the water seal flushing mechanism.
The first hose 11 is arranged at the lower part of the box body 36, and two ends of the variable frequency washing pump 32 are connected with the first hose 11 through flexible joints 31, so that the variable frequency washing pump is convenient to disassemble and maintain. Be equipped with manometer 7, manual ball valve 33 and flowmeter 34 on the first hose 11 between frequency conversion flush pump 32 and the adjustable shower nozzle 2 in proper order, manometer 7 is used for observing the pressure of frequency conversion flush pump 32 export, and manual ball valve 33 is used for the break-make of the first hose 11 of manual regulation, convenient maintenance. The flow meter 34 is used to record the flow into the adjustable spray head 2. The upper portion and the lower part of box 36 all are equipped with level switch 5, and level switch 5 is used for detecting the liquid level of box 36. The lower part of the box body 36 is also provided with a water outlet pipe for discharging the redundant test medium in the box body 36. The flow of the nozzle 16 at the front end of the adjustable spray head 2 is controlled by adjusting the variable frequency washing pump 32, and the values of the pressure sensors under different flow conditions are read to test the washing effect. The testing medium is different from water, bentonite or sand-added bentonite and the like.
Preferably, as shown in fig. 2, one side of the pressure tank 1 is provided with a first nozzle interface 8, a second nozzle interface 9, a third nozzle interface 10 and a sight glass 13, the other side of the pressure tank 1 is provided with a sight glass 13 and a pressure sensor 14 corresponding to the first nozzle interface 8, the second nozzle interface 9 and the third nozzle interface 10, and the first nozzle interface 8, the second nozzle interface 9 and the third nozzle interface 10 are all connected with the adjustable nozzle 2 through a third flange 20. The third flange 20 is fixed to the pressure tank 1. The diameters of the first nozzle interface 8, the second nozzle interface 9 and the third nozzle interface 10 are sequentially increased, the nozzle is respectively suitable for nozzles with the diameters of 50 mm, 80 mm and 100mm, the size of the nozzle is adjusted, and the pipe diameter and the front stress area of the nozzle can be changed.
The quantity of first nozzle interface 8 and second nozzle interface 9 all is equipped with 3, and wherein, 2 a first nozzle interface 8 and 2 a second nozzle interface 9 offsides all are fixed with pressure sensor 14, 1 a first nozzle interface 8 and 1 a second nozzle interface 9 offsides and all are equipped with sight glass 13. The provision of two identical first nozzle ports 8 and second nozzle ports 9 is provided to facilitate the simultaneous testing of the flushing effect of two nozzles of the same size at different distances. The number of the third nozzle ports 10 is 1, and a pressure sensor 14 is fixed on the pressurizing tank body 1 at the opposite side of the third nozzle ports 10. And the first nozzle interface 8 and the second nozzle interface 9 which are matched with the sight glass 13 can observe the effect of washing experimental silt. The upper part of the pressure tank body 1 is provided with a sight glass 13, the sight glass 13 is transparent glass, and the sight glass 13 is fixed in the pressure tank body 1. The sight glasses 13 are arranged at the side part and the upper part of the pressurizing tank body 1, so that the flushing effect of the nozzle can be conveniently observed at any time from different angles. The upper part of the pressurizing tank body 1 is provided with a hydraulic switch 5 for detecting the liquid level of the medium in the pressurizing tank body 1. The pressure gauges 7 are uniformly distributed on the upper part of the pressurizing tank body 1 and are used for detecting the pressure of different parts of the pressurizing tank body 1. The two sides of the pressurizing tank body 1 are provided with a pressure relief hole and a safety valve, so that the automatic pressure relief caused by overlarge pressure of the pressurizing tank body 1 is prevented.
The two sides of the pressurizing tank body 1 are provided with the cover bodies 3, the cover bodies 3 are connected with the pressurizing tank body 1 through the first flanges 4, and the flange connection facilitates the working personnel to enter the pressurizing tank body 1 to maintain the parts inside. The lower part of the pressure tank body 1 is fixed on a support frame 30, the support frame 30 is fixed on a base 6, and the base 6 and the support frame 30 can stably support the pressure tank body 1.
As shown in fig. 3 and 4, the pressure sensor 14 and the sight glass 13 correspond to the adjustable nozzle head 2. The adjustable spray head 2 comprises a spray nozzle 16, a piston rod 23, a first screw rod 24 and a second screw rod 25, the spray nozzle 16 is fixedly connected with the piston rod 23 through a second flange 17, the spray nozzle 16 is arranged in the pressurizing tank body 1, and the spray nozzle 16 moves horizontally under the driving of the piston rod 23. The first screw 24 is connected to an upper portion of the third flange 20 by a nut, the second screw 25 is fixed to a lower portion of the third flange 20, and the piston rod 23 is horizontally movable with respect to the first screw 24 and the second screw 25. A fourth flange 26 is fixed at the tail end of the piston rod 23, the fourth flange 26 is connected with the first screw rod 24 and the second screw rod 25 through nuts, two nuts are welded on the fourth flange 26 or two threaded holes are formed in the fourth flange, and the piston rod 23 can be adjusted to move outwards through the second screw rod 25; the third flange 20 is welded with a nut or provided with two threaded holes, by means of which the piston rod 23 can be adjusted to move inwards by means of the first threaded rod 24.
Preferably, a sealing strip 15 is arranged between the pressure sensor 14 and the pressurizing tank body 1, the sealing strip 15 is an O-shaped sealing strip, and the sealing strip 15 is connected with the pressurizing tank body 1 through bolts. The medium sprayed by the nozzle 16 hits the sealing strip 15 and the pressure sensor 14 detects the pressure to which it is subjected.
Preferably, the middle of the second flange 17 is provided with a first sealing gasket 19, the periphery of the second flange 17 fixedly connects the nozzle 16 and the piston rod 23 through bolts, nuts and gaskets, and the first sealing gasket 19 seals the joint of the piston rod 23 and the nozzle 16 to prevent the medium from flowing outwards. The piston rod 23 is connected with a first hose through a hose connecting flange 29, the hose connecting flange 29 is connected with the first screw 24 and the second screw 25 through nuts, a second sealing gasket 27 is arranged between the hose connecting flange 29 and the piston rod 23, and the second sealing gasket 27 is used for sealing the joint of the piston rod 23 and the hose connecting flange 29.
Preferably, as shown in fig. 5, a reciprocating seal 18 is provided between the piston rod 23 and the third flange 20 for protecting the sealing performance of the third flange 20 and the piston rod 23 in relative movement. The rear end of the reciprocating seal 18 is provided with a stop 22, the upper part of the stop 22 is fixedly connected with the third flange 20 through a bolt, an adjusting gasket 21 is arranged between the upper part of the stop 22 and the third flange 20, and the stop 22 is used for arranging the reciprocating seal 18 between the third flange 20 and the piston rod 23. The size of the reciprocating seal 18 can be adjusted by bolts and adjusting shims 21.
The pressurizing tank body 1 can change the pressure working condition, complete the required simulation test by changing different parameters in the test, and monitor the running condition by a series of instruments such as sensors and the like.
1. Under the condition of pressurization of a pressurization tank body or normal pressure, a nozzle is selected, the discharge capacity of a variable-frequency speed-regulating pump is regulated, the flow speed of the nozzle is enabled to be about 15-20m/s, under the condition of equal flow, the distance between an adjustable nozzle and a target is regulated, the numerical value of a pressure sensor is read, and the test flushing effect under the condition of different target distances is controlled. The distance between the nozzle and the sealing strip, namely the target, can be calculated by measuring the length of the piston rod from the outer side of the pressurizing tank body 1.
2. Under the condition of pressurizing the pressurizing tank body or normal pressure, selecting the same nozzle according to the conclusion of the test 1, controlling the flow of the nozzle by adjusting the variable-frequency washing pump under the condition of the same target distance with the optimal effect in the test 1, reading the value of the pressure sensor under the condition of different flow, and testing the washing effect.
3. Under the condition of pressurizing the pressurizing tank body or normal pressure, nozzles with different diameters are selected by using the first nozzle interface 8, the second nozzle interface 9 and the third nozzle interface 10, the value of the pressure sensor is read under the condition of the optimal flow rate at the same target distance according to the tests 1 and 2, and the flushing effect is tested.
4. Under the condition of pressurizing the pressurizing tank body or normal pressure, according to the conclusion of the tests 1, 2 and 3, the inner side of the sight glass 13 is coated with silt, a nozzle with certain parameter design is selected for carrying out a flushing test, the time for flushing the silt is recorded, and the test phenomenon is well done.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (9)
1. An adjustable nozzle erosion test device is characterized by comprising a pressurizing tank body (1), a tank body (36) and a plurality of adjustable nozzles (2), wherein the adjustable nozzles (2) are fixed on the pressurizing tank body (1), a sight glass (13) and a pressure sensor (14) are arranged on the pressurizing tank body (1), and the positions of the sight glass (13) and the pressure sensor (14) correspond to the positions of the adjustable nozzles (2); the tank body (36) is connected with the adjustable spray head (2) through a first hose, a variable frequency washing pump (32) is arranged on the first hose, the lower part of the pressurizing tank body (1) is connected with the tank body (36) through a second hose, and an outlet valve (39) is arranged on the second hose; a water sealing flushing mechanism is arranged on the variable frequency flushing pump (32);
the hose of the water seal flushing mechanism is sequentially provided with a manual ball valve (33), a pressure switch (37), a flow regulating valve (38) and a check valve (35), pressure gauges (7) are arranged on two sides of the flow regulating valve (38), and the water seal flushing mechanism is connected with a variable-frequency flushing pump (32) through the manual ball valve (33).
2. The adjustable nozzle flushing test device according to claim 1, wherein two ends of the variable frequency flushing pump (32) are connected with a first hose through flexible joints (31), and a pressure gauge (7), a manual ball valve (33) and a flow meter (34) are sequentially arranged on the first hose between the variable frequency flushing pump (32) and the adjustable nozzle (2); and liquid level switches (5) are arranged on the upper part and the lower part of the box body (36).
3. The adjustable sprinkler head flushing test device according to claim 1, wherein a first nozzle port (8), a second nozzle port (9), a third nozzle port (10) and a sight glass (13) are arranged on one side of the pressurizing tank body (1), the sight glass (13) and a pressure sensor (14) corresponding to the first nozzle port (8), the second nozzle port (9) and the third nozzle port (10) are arranged on the other side of the pressurizing tank body (1), and the first nozzle port (8), the second nozzle port (9) and the third nozzle port (10) are connected with the adjustable sprinkler head (2) through a third flange (20).
4. The adjustable nozzle flushing test device according to claim 3, wherein the number of the first nozzle ports (8) and the number of the second nozzle ports (9) are 3, wherein pressure sensors (14) are fixed on the opposite sides of the 2 first nozzle ports (8) and the 2 second nozzle ports (9), and sight glasses (13) are arranged on the opposite sides of the 1 first nozzle ports (8) and the 1 second nozzle ports (9); the number of the third nozzle interfaces (10) is 1, and pressure sensors (14) are fixed on the pressurizing tank body (1) on the opposite side of the third nozzle interfaces (10); the upper part of the pressurizing tank body (1) is provided with a sight glass (13).
5. The adjustable nozzle flushing test device according to claim 1 or 4, wherein a sealing strip (15) is arranged between the pressure sensor (14) and the pressurizing tank body (1), the sealing strip (15) is an O-shaped sealing strip, and the sealing strip (15) is connected with the pressurizing tank body (1) through a bolt.
6. The adjustable nozzle flush test device according to claim 1, wherein the adjustable nozzle (2) comprises a nozzle (16), a piston rod (23), a first screw (24) and a second screw (25), and the nozzle (16) is fixedly connected with the piston rod (23) through a second flange (17); the first screw rod (24) is connected with the upper part of the third flange (20) through a nut, and the second screw rod (25) is fixed at the lower part of the third flange (20); and a fourth flange (26) is fixed at the tail end of the piston rod (23), and the fourth flange (26) is connected with the first screw rod (24) and the second screw rod (25) through nuts.
7. The adjustable sprinkler flush test device according to claim 6, wherein a first sealing gasket (19) is arranged in the middle of the second flange (17), and the nozzle (16) and the piston rod (23) are fixedly connected with the periphery of the second flange (17) through bolts, nuts and gaskets; the piston rod (23) is connected with the first hose through a hose connecting flange (29), the hose connecting flange (29) is connected with the first screw rod (24) and the second screw rod (25) through nuts, and a second sealing gasket (27) is arranged between the hose connecting flange (29) and the piston rod (23).
8. The adjustable sprinkler flush test device according to claim 6, wherein a reciprocating seal (18) is arranged between the piston rod (23) and the third flange (20), a stopper (22) is arranged at the rear end of the reciprocating seal (18), the upper portion of the stopper (22) is fixedly connected with the third flange (20), and an adjusting gasket (21) is arranged between the upper portion of the stopper (22) and the third flange (20).
9. The adjustable nozzle flush test device according to claim 1, wherein a cover body (3) is arranged on one side of the pressurizing tank body (1), and the cover body (3) is connected with the pressurizing tank body (1) through a first flange (4); the lower part of the pressurizing tank body (1) is fixed on a support frame (30), and the support frame (30) is fixed on a base (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203865.1A CN107063661B (en) | 2017-03-30 | 2017-03-30 | Adjustable nozzle scouring test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203865.1A CN107063661B (en) | 2017-03-30 | 2017-03-30 | Adjustable nozzle scouring test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107063661A CN107063661A (en) | 2017-08-18 |
| CN107063661B true CN107063661B (en) | 2023-04-07 |
Family
ID=59602383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710203865.1A Active CN107063661B (en) | 2017-03-30 | 2017-03-30 | Adjustable nozzle scouring test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107063661B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181087B (en) * | 2018-02-01 | 2019-09-13 | 中南大学 | A kind of slurry shield machine scouring experiment system and its imitative experimental appliance of application |
| CN110454193B (en) * | 2019-07-31 | 2024-03-19 | 盾构及掘进技术国家重点实验室 | Intelligent control device of front-mounted wet spraying machine for TBM construction |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02272196A (en) * | 1989-04-12 | 1990-11-06 | Ohbayashi Corp | Washing device for enclosed shield machine |
| JPH07269281A (en) * | 1994-04-01 | 1995-10-17 | Fujita Corp | Shield driving machine |
| CN102507163A (en) * | 2011-10-10 | 2012-06-20 | 沈阳重型机械集团有限责任公司 | Test loading device for shield tunneling machine under high water pressure |
| CN202500570U (en) * | 2012-01-17 | 2012-10-24 | 中交隧道工程局有限公司 | Scouring apparatus for cutterhead central area of large-scale slush type shield machine |
| CN204276421U (en) * | 2014-11-28 | 2015-04-22 | 中铁十八局集团第三工程有限公司 | A kind of cutter head of shield machine flusher |
| CN204872687U (en) * | 2015-07-16 | 2015-12-16 | 郑州市第一建筑工程集团有限公司 | Shield constructs quick -witted hydroblasting system |
| CN105587323A (en) * | 2016-03-01 | 2016-05-18 | 厦门厦工中铁重型机械有限公司 | Anti-blocking mechanism applicable to shield tunneling machine cutterhead foam nozzle and method thereof |
| CN106285699A (en) * | 2016-09-19 | 2017-01-04 | 南昌大学 | System is prevented and treated based on the earth pressure balanced shield, EPBS mud cake synchronizing jet |
| CN206756439U (en) * | 2017-03-30 | 2017-12-15 | 中铁工程装备集团有限公司 | A kind of adjustable spray head washout test device |
-
2017
- 2017-03-30 CN CN201710203865.1A patent/CN107063661B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02272196A (en) * | 1989-04-12 | 1990-11-06 | Ohbayashi Corp | Washing device for enclosed shield machine |
| JPH07269281A (en) * | 1994-04-01 | 1995-10-17 | Fujita Corp | Shield driving machine |
| CN102507163A (en) * | 2011-10-10 | 2012-06-20 | 沈阳重型机械集团有限责任公司 | Test loading device for shield tunneling machine under high water pressure |
| CN202500570U (en) * | 2012-01-17 | 2012-10-24 | 中交隧道工程局有限公司 | Scouring apparatus for cutterhead central area of large-scale slush type shield machine |
| CN204276421U (en) * | 2014-11-28 | 2015-04-22 | 中铁十八局集团第三工程有限公司 | A kind of cutter head of shield machine flusher |
| CN204872687U (en) * | 2015-07-16 | 2015-12-16 | 郑州市第一建筑工程集团有限公司 | Shield constructs quick -witted hydroblasting system |
| CN105587323A (en) * | 2016-03-01 | 2016-05-18 | 厦门厦工中铁重型机械有限公司 | Anti-blocking mechanism applicable to shield tunneling machine cutterhead foam nozzle and method thereof |
| CN106285699A (en) * | 2016-09-19 | 2017-01-04 | 南昌大学 | System is prevented and treated based on the earth pressure balanced shield, EPBS mud cake synchronizing jet |
| CN206756439U (en) * | 2017-03-30 | 2017-12-15 | 中铁工程装备集团有限公司 | A kind of adjustable spray head washout test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107063661A (en) | 2017-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104897510A (en) | Method for evaluating erosion rate of sand control pipe and its special-purpose apparatus | |
| CN2840038Y (en) | Cement expansion analog tester | |
| CN107063661B (en) | Adjustable nozzle scouring test device | |
| CN107179269B (en) | Test device and test method capable of simulating rainfall and top loading simultaneously | |
| CN108037267B (en) | Test device for simulating water leakage erosion scouring of pipeline to induce road collapse | |
| CN206756439U (en) | A kind of adjustable spray head washout test device | |
| CN108931437A (en) | A kind of hydraulic pressure and pressure test device of pressure vessel conduit | |
| CN108643891B (en) | Single-loop overburden fracture double-end plugging and leakage detection method | |
| US20230141812A1 (en) | Dynamic crack leaking stoppage evaluation experiment device and experiment method | |
| CN105352710A (en) | System for testing actual impact domain of nozzle | |
| CN108645774B (en) | Single-loop overburden fracture double-end plugging leakage detection system | |
| CN104596596B (en) | A kind of positive displacement micro liquid flowmeter and its application method | |
| CN104459189A (en) | Actuator cylinder piston rod travel speed measurement device | |
| CN206020226U (en) | A kind of Multifunctional permeameter | |
| CN109443481A (en) | A kind of closed pressure vessel measuring device and level measuring method | |
| CN108776069A (en) | A kind of pipeline strength detection device of pressure vessel | |
| CN107894308A (en) | A kind of failure test method of bellows | |
| CN205561826U (en) | Transparent pair of measurement system hydrostatic level appearance | |
| CN113720994B (en) | Device and method for testing stability of excavation face of shield tunnel under spring condition | |
| CN214063458U (en) | Oil cylinder internal leakage detection device, hydraulic system and engineering machinery | |
| CN106338357A (en) | Inverted-U-shaped-tube differential pressure gauge | |
| CN208236790U (en) | The load test stand of aviation hydraulic oil pump vehicle | |
| CN207439669U (en) | A kind of valve Quick-action pressure-testing detection device | |
| CN115060458A (en) | Hydraulic tunnel long-term water passing simulated environment test device and test method | |
| CN108591140A (en) | The load test stand of aviation hydraulic oil pump vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |